In section one, by using FICE scheme and TIME-GCM, a model of trace gases and OH airglow affected by gravity wave is set up, then the propagation of nonlinear gravity wave and the effect on trace gases and OH airglow are analyzed. The result shows gravity wave excited by tropospause forcing can propagate stably to the mesosphere through the stratosphere so that energy and momentum can be transferred from one region to another. In this process, gravity wave undergoes growth, overturning, convection and breaking. And the no-isothermal structure can accelerate the breaking of gravity wave in mesospause, and the breaking of gravity wave is an important source of convection and small-scale waves.
在第一部分的工作中，利用全隐欧拉格式和全球热层-电离层-中间层-电动力学环流耦合模式，对重力波的非线性传播及其在传播过程中对中高层大气中氧族和氢族成分和与之密切相关的OH气辉辐射的影响进行了数值模拟，结果表明，从对流层向上传播的重力波经历了产生、发展、饱和、对流产生直至破碎的非线性演化，大气的非等温结构加速了重力波在中层顶区的破碎，重力波的非线性传播是小尺度对流和湍流产生的一个重要的源。
In section one, by using FICE scheme and TIME-GCM, a model of trace gases and OH airglow affected by gravity wave is set up, then the propagation of nonlinear gravity wave and the effect on trace gases and OH airglow are analyzed. The result shows gravity wave excited by tropospause forcing can propagate stably to the mesosphere through the stratosphere so that energy and momentum can be transferred from one region to another. In this process, gravity wave undergoes growth, overturning, convection and breaking. And the no-isothermal structure can accelerate the breaking of gravity wave in mesospause, and the breaking of gravity wave is an important source of convection and small-scale waves. The propagation of gravity wave will affect the distribution of minor species.
在第一部分的工作中，利用全隐欧拉格式和全球热层-电离层-中间层-电动力学环流耦合模式，对重力波的非线性传播及其在传播过程中对中高层大气中氧族和氢族成分和与之密切相关的OH气辉辐射的影响进行了数值模拟，结果表明，从对流层向上传播的重力波经历了产生、发展、饱和、对流产生直至破碎的非线性演化，大气的非等温结构加速了重力波在中层顶区的破碎，重力波的非线性传播是小尺度对流和湍流产生的一个重要的源。
Gravity wave and ozone are two interesting topics in the middle and upper atmosphere. In this dissertation, they are studied by numerical simulation and instrument development respectively. In section one, by using FICE scheme and TIME-GCM, a model of trace gases and OH airglow affected by gravity wave is set up, then the propagation of nonlinear gravity wave and the effect on trace gases and OH airglow are analyzed. The result shows gravity wave excited by tropospause forcing can propagate stably to the mesosphere through the stratosphere so that energy and momentum can be transferred from one region to another. In this process, gravity wave undergoes growth, overturning, convection and breaking. And the no-isothermal structure can accelerate the breaking of gravity wave in mesospause, and the breaking of gravity wave is an important source of convection and small-scale waves.
中文题名气辉的非线性重力波研究及臭氧总量探测仪的研制副题名外文题名 The study of airglow by nonlinear gravity wave and the development of the total ozone spectrometer 论文作者王咏梅导师刘振兴王英鉴学科专业空间物理学研究领域研究方向学位级别博士学位授予单位中国科学院空间科学与应用研究中心学位授予日期2003 论文页码总数88页关键词臭氧气辉重力波馆藏号BSLW /2003 /P421 /7 重力波和臭氧是中高层大气中研究的两大热门课题，本文分别从理论模式和仪器研制两方面对它们进行了研究。
The effect of the two connected forms between the steel frame and it's concrete tubular in mixture structure, are discussed on the anti-seismic performance, such as inter-story displacement, story shear, inter-story displacement angle, structural internal force, overturning moment and so on. Further more, the effect mechanism is discussed.
运用三维弹塑性分析程序CANNY99，分析了钢框架—混凝土核心筒混合结构的外钢框架与混凝土核心筒的两种连接方式对结构的层间位移、楼层剪力、层间位移角、结构的内力、倾覆弯矩等抗震性能的影响，并探讨了其作用机理。
Superelevation helps to balance the overturning effect due to the centrifugal force and this beneficial effect may be considered.
超高有助于平衡离心力产生的颠覆效应，可考虑这种正面影响。
Through the push over analysis of two tall concrete buildings with different structure types the influence of second order effect on top drift and base overturning moment had been discussed in detail.
对两栋不同结构体系的高层混凝土建筑进行了推覆分析，详细讨论了二阶效应对结构顶点侧移和基底倾覆力矩的影响。
Abstract: The widening of gauge and the overturning of rail will effect the contact point and dynamic forces between wheel and rail.
文摘：轨距扩大和钢轨侧翻将影响到轮轨接触点位置和动力作用。
And it is also similar of stability of overturning and derailing between titling train negotiating curve and traveling on level track under the effect of not so big crosswind.
在侧向风速较小的情况下，列车过曲线时，空气对车辆倾覆稳定性和脱轨稳定性的影响与直线路上相似。
The high rise frame of base isolation buildings that are provided with energy dissipator have good effect on horizontal and vertical shock absorption and good ability of anti-overturning.
设置消能器的高层框架基础隔震建筑在罕遇地震作用下有良好的水平和竖向减震效果及抗整体倾覆的能力。